<script setup lang="ts">
import 'vue-cropper/dist/index.css';
import {VueCropper} from 'vue-cropper';
import {uploadAvatar} from '@/api/system/user';
import {useUserStore} from '@/store/modules/user';
import {getDialogWidth} from '@/utils/widthUtils';

interface Options {
  img: string | any; // 裁剪图片的地址
  autoCrop: boolean; // 是否默认生成截图框
  autoCropWidth: number; // 默认生成截图框宽度
  autoCropHeight: number; // 默认生成截图框高度
  fixedBox: boolean; // 固定截图框大小 不允许改变
  filename: string;
  previews: any; // 预览数据
  outputType: string;
  visible: boolean;
}

const userStore = useUserStore();
const {proxy} = getCurrentInstance() as ComponentInternalInstance;

const open = ref(false);
const visible = ref(false);
const title = ref('修改头像');

const cropper = ref<any>({});

//图片裁剪数据
const options = reactive<Options>({
  img: userStore.avatar,  // 裁剪图片的地址
  autoCrop: true,         // 是否默认生成截图框
  autoCropWidth: 200,     // 默认生成截图框宽度
  autoCropHeight: 200,    // 默认生成截图框高度
  fixedBox: true,         // 固定截图框大小 不允许改变
  outputType: 'png',      // 默认生成截图为PNG格式
  filename: 'avatar',     // 文件名称
  previews: {},           // 预览数据
  visible: false
});

/** 编辑头像 */
const editCropper = () => {
    open.value = true;
}

/** 打开弹出层结束时的回调 */
const modalOpened = () => {
    visible.value = true;
}

/** 覆盖默认上传行为 */
const requestUpload = () => {
}

/** 向左旋转 */
const rotateLeft = () => {
    cropper.value.rotateLeft();
};

/** 向右旋转 */
const rotateRight = () => {
    cropper.value.rotateRight();
};

/** 图片缩放 */
const changeScale = (num: any) => {
    num = num || 1;
    cropper.value.changeScale(num);
};

/** 上传预处理 */
const beforeUpload = (file: any) => {
    if (file.type.indexOf('image/') == -1) {
        proxy.$modal.msgError('文件格式错误，请上传图片类型,如：JPG，PNG后缀的文件。');
    } else {
        const reader = new FileReader();
        reader.readAsDataURL(file);
        reader.onload = () => {
            options.img = reader.result;
            options.filename = file.name;
        };
    }
};

/** 上传图片 */
const uploadImg = () => {
    cropper.value.getCropBlob(async (data: any) => {
        let formData = new FormData();
        formData.append('avatarFile', data, options.filename);
        uploadAvatar(formData).then(response => {
            open.value = false;
            options.img = import.meta.env.VITE_APP_BASE_API + response.imgUrl;
            userStore.avatar = options.img;
            proxy.$modal.msgSuccess('修改成功');
            visible.value = false;
        });
    });
}

/** 实时预览 */
const realTime = (data: any) => {
    options.previews = data;
}

/** 关闭窗口 */
const closeDialog = () => {
    options.img = userStore.avatar;
    options.visible = false;
}
</script>

<template>
  <div class="user-info-head" @click="editCropper()">
    <img :src="options.img" title="点击上传头像" class="img-circle img-lg"/>
    <el-col :xs="24" :md="12">
      <el-dialog :title="title" v-model="open" :width="getDialogWidth()" append-to-body @opened="modalOpened"
                 @close="closeDialog">
        <div style="margin: auto">
          <el-row>
            <el-col :xs="24" :md="12" :style="{ height: '350px' }">
              <vue-cropper
                  ref="cropper"
                  :img="options.img"
                  :info="true"
                  :autoCrop="options.autoCrop"
                  :autoCropWidth="options.autoCropWidth"
                  :autoCropHeight="options.autoCropHeight"
                  :fixedBox="options.fixedBox"
                  :outputType="options.outputType"
                  @realTime="realTime"
                  v-if="visible"
              />
            </el-col>
            <el-col :xs="24" :md="12" :style="{ height: '350px' }">
              <div style="position: relative;width: 100%;height: 100%">
                <div class="avatar-upload-preview">
                  <div class="avatar-upload-preview-inner">
                    <img :src="options.previews.url" :style="options.previews.img"/>
                  </div>
                </div>
              </div>
            </el-col>
          </el-row>
          <br/>
          <div style="width: 100%;">
            <el-row :gutter="2">
              <el-col :xs="4" :sm="3" :lg="2">
                <el-upload
                    action="#"
                    :http-request="requestUpload as any"
                    :show-file-list="false"
                    :before-upload="beforeUpload"
                >
                  <el-button>
                    选择
                    <el-icon class="el-icon--right">
                      <Upload/>
                    </el-icon>
                  </el-button>
                </el-upload>
              </el-col>
              <el-col :xs="{ span: 2, offset: 2 }" :sm="{ span: 1, offset: 2 }" :lg="{ span: 1, offset: 2 }">
                <el-button icon="Plus" @click="changeScale(1)"></el-button>
              </el-col>
              <el-col :xs="{ span: 2, offset: 1 }" :sm="{ span: 1, offset: 1 }" :lg="{ span: 1, offset: 1 }">
                <el-button icon="Minus" @click="changeScale(-1)"></el-button>
              </el-col>
              <el-col :xs="{ span: 2, offset: 1 }" :sm="{ span: 1, offset: 1 }" :lg="{ span: 1, offset: 1 }">
                <el-button icon="RefreshLeft" @click="rotateLeft()"></el-button>
              </el-col>
              <el-col :xs="{ span: 2, offset: 1 }" :sm="{ span: 1, offset: 1 }" :lg="{ span: 1, offset: 1 }">
                <el-button icon="RefreshRight" @click="rotateRight()"></el-button>
              </el-col>
              <el-col :xs="{ span: 2, offset: 2 }" :sm="{ span: 2, offset: 5 }" :lg="{ span: 2, offset: 6 }">
                <el-button type="primary" @click="uploadImg()">提 交</el-button>
              </el-col>
            </el-row>
          </div>
        </div>
      </el-dialog>
    </el-col>
  </div>
</template>

<style lang='scss' scoped>
.user-info-head {
  position: relative;
  display: inline-block;
  height: 120px;
}

.user-info-head:hover:after {
  content: "+";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  color: #eee;
  background: rgba(0, 0, 0, 0.5);
  font-size: 24px;
  font-style: normal;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  cursor: pointer;
  line-height: 110px;
  border-radius: 15px;
}
</style>